Bake pan unit



P 1952 J. L. DARNELL ET AL 2,609,959

BAKE PAN UNIT Filed June 9, 1949 I 2 SHEETSSHEET 1 IN V EN TOR.

JESSE L. DARNELL BY ELBERTM CORMACK P 9, 1952 J; L. DARNELL ET AL2,609,959

BAKE PAN UNIT Filed June 9, 1949 2 SHEETS-SHEET 2.

INVENTORS. J Jzsss L. DARNELL LBERT M. CORMAC/f i /3 2/ "13 BY E y M -i-97 ZW Patented Sept. 9, i952 BAKE PAN UNIT ,Jesse L. Darnell, Milford,and Elbert M. Cormack, Mount Healthy, Ohio, assignors to The ,LockwoodManufacturing Company, Ohio, a corporation of Ohio Cincinnati,

Application June 9, 1949, Serial No. 98,084

'I his invention relates to baking pan units of the typedisclosed inprior Patents Nos. 2,037,759, 2,143,728, and 2,198,105 issued to ElmerH. Chandonia, and more particularly to improvements in the means wherebythe pans are secured to the straps or bands of the unit.

Pan sets for bakers usually comprise a plurality of individual pansarranged in side by side or .paralle1 relationship and secured togetheras a unit by means of a band that embraces the pan unit and is securedto the individual pans. The number of pans in a set, the space betweenpans, and the size and shape of individual 'pans are usually specifiedby the baker. The baker also may specify his choice of type of band,some preferring the over-wire band and others the under-wire band.

, An object of this invention is to provide a panset construction havinga vertical lap clinch for both over-wire and under-wire banded pan-sets.

Another objector the invention is to provide a rivetless paneset with animproved vertical clinch between the pans and the bands for both theover-wire and the under-wire band type.

These and other objects of the invention will in part be apparent andwill in part be obvious from the following description, taken inconjunction with the accompanying drawings, in

which:

dividual pans are rigidly secured at the ends thereof to the band; e

Fig. 2 is an enlarged sectional view taken on line II--II of Fig. 1;

Fig. 3 is a view in elevation of a portion of the over-wire band shownin Fig. 1;

Fig. 4 is a view in section taken on line IV-IV of Fig. 3;

Fig. 5 is a view in perspectwe of one end of a pan such as shown in Fig.1;

Fig. 6 is a view in section taken on 11118 VI- VI of Fi 1; i

Fig. 7 is-a view similar to Fig. 1, of an underwire band constructionembodying thevertical clinch ofthe invention; i

Fig. 8 is a view in side elevation of a pan unit showing how the bandsat the oppositeends of the pan unit are tied together by means of astrap;

Fig. 9 is atop plan view of a pan-set such as "shown in the precedingviews;

7 Claims. (01. 22043.2)

forms of bands containing vertical lap. clinch lugs. ,l

, Throughout the drawings and the specification like referencecharactersindicate like parts. In Fig. 1 of the drawings we have shown aportion of the pan-set which comprises a plurality of pans l0. only twoof which are shown, in end view. These pans are spaced apartapredetermined or specified distance and are rigidly secured at theirends to a band II. The band ll may comprise two sections, one at eachend of the pan set, with the ends of the bands tied together by means-ofstraps l2 which are riveted to the bands as indicated at l3 in Figs. 8and 9. The straps l2 may be omitted and the ends of the band sections Hmay be riveted or otherwise secured to the outer walls of the outermostpans as shown at R in Fig. 11, or there may be a continuous peripheralor embracing band H having the same shape in section as sections H, theends of which overlap as at R at the outer wall of one of the outermostpans, the overlapping ends being riveted orotherwise secured as shown inFig. 10. e

The opposite ends of the pans of a unit are rigidly and firmly securedto the bands H by means of a vertical clinch l4.

The pans 10 of these units are of usual construction. 'As is customary,each pan is made from a sheet of tin plate which has been blanked in theflat in such a manner that when the metal is folded, a pan having endsand sides is formed. The ends of the pans, as will be observed from thedrawingshave, as a result of the folding, inverted triangular flaps l5,andthese flaps are of double thickness. Behind the inverted triangularflaps l5 there is a single thickness .end wall l6 at each endof the pan.The end walls l6 and the side walls of the pan project above the baselines I! of the triangular flaps.

As may be seen by inspection of Figs. 1 and 5, an L-shaped notch l8iscut in the free corners of the triangular flaps [5, so that thesecorners can be bent or deflected outwardly from the end walls [6 afterthepans have been completely formed. The pans shown are of the typehaving a reinforcing wire 20 extending around the periphery of theindividual pans at the top thereof and the edges of the sides and endsof the pans arerolled over this wire, the rolled-over edge beingindicated by numeral 2|. Thus, as may be seen in Figs. 1, 2, 5, and 6,the rolled-over edges 2| conceal the reinforcing wire 20 and abut thetriangular flaps l5 between the shoulders 28 of the notches I8 and theouter corners of the lower edges, respectively, the upper half-rolledgroove 24 being deep enough to substantially embrace the rolled edge 2|at the ends and corners of the pans. The lower half-round groove 25 isprimarily forthe purpose of increasing the stifiness and rigidity of thebands.

Bands H are provided with inwardly and downwardly projecting verticallugs 26 which are formed by partially punching out metal as indicated inthe drawings. These lugs are dis- Fig." 1.

posed in a vertical plane and extend downwardly ii below the rim of thepan. As may be seen more particularly in Figs. 2 and 4, the lugs 26 arebent inwardly towards the end walls 16 of the pan in order toaccommodate/the corners of flaps [5. The lugs 26 are so spaced that whenthe bands are attached to the pan units, the lugs will fit quite snuglyagainst the vertical shoulders 28 "formed at the ends of the notches I8.I

The bands are applied to the ends-of a series of pans by deflecting thefree corners I5 of the triangular folds l5 outwardly from the end wallsl6 as indicated in dotted lines in Fig. 5. The bands are then slippedover the top of the pans with the lugs 26 placed behind the corners offlaps l5. By applying pressure to the bands in the regions of the lugs26, the free corners of the triangular folds or flaps l5 and the lugs 26are squeezed together and clinched as shown in Fig. 2-. When the panshave been attached to the bands H in the manner above described the pansare held against movement longitudinally of the bands by the co-actionof the lugs 26 and the abutting shoulders 28. Also, by reason of thefact that groove 24 substantially. embraces the rolled edges 2i of thepans, the pans are firmly locked to the bands so that they can, neitherturn about either lug 25 as an aXis. The bands H having been secured tothe ends of the pans as above described, the tie bands [2 are applied asshown in Figs. 8 and 9. The upper edges of bands I2 may if desired bedesigned to abut the underside of the rolled longitudinaled'ges of theoutermost pans in a unit and are riveted to the bands I l as indicatedat 3.

In the band over-wire construction, thereinforcing wire 20 is usuallyof-larger diameter than the reinforcing wire used on pans having theunder-wire band construction shown in Fig. 7. In the over-wireconstruction the width of the bands ii may be greater than those, shownin Fig. '7. 'However, the matter of dimension of bands is largelydictated by a particular customers choice. In any event, these bands aremade as heavy or strong as is necessary to give the strength andrigidity required in a, pan unit, in View of the rough handling theyreceive in use.

If theiormof bands shown in Figs. 10 and l l are employed, they aresecuredto form the vertical lap clinch between the c ps [5' and lugs 26as above described. In the form shown in Fig. 11, the ends of sections Hareriveted-to the pan walls as shown, or if the continuous band of Fig.10 is employed, the overlapping ends' of the band are secured togetheraswith rivets or byaprojection weld.

The strength and rigidity of the'triangu'lar flaps I5 and the clinchlugs 26 prevent downward movement of the end bands or band sections inrelation to the pan ends, while the interlocking of the bands H with therolled edges of the pan ends and the securing of the ends thereof asshown, prevents upward movement of the bands in relation to the panends.

In Fig. '7, we have illustrated how the vertical clinch may be appliedto under-wire bands. As there illustrated, the upper half-round groove24' fits snugly under the wire reinforced rolled edge at the ends andcorners of the pans, and the v'ertical clinch lugs 26 are disposedbehind the freecornersof the triangular flaps l5, as in In theunder-wire band construction it may be'found that thefree corners of thetriangular flaps [5, when made as in Fig. 1, will be so stifi that'theycan not be easily bent outwardly to receive the vertical clinch lugs 26witho-ut'considerable efiort. Therefore, to make it easier to bend thesefree corners outwardly from the end walls I 6 of the pans, an additionalnotch 30 may be cut in the triangular flaps l5 immediately under therolled upper edges of the pans. It is to be observed, also, that'theL-shaped notches 18' extend farther down into the free corners of theflaps 15 because the clinch lugs 26 are spacedrfarthe'r from the rim 2|of the pans when the under-wire bands are applied.

When the bands are applied, the vertical clinch lugs 26 abut the corners28' in the triangular flaps and the pans can not shift in eitherdirection lengthwise of thebands ll As in the overwire bandconstruction, the clinch lugs and the free corners of the triangularflaps i5 are squeezed together so as to cause the flaps and the lugs andend walls I6, to be firmly and rigidly clinched. Thus, a rigidconnection is accomplished by means of the vertical clinch between theends of the .pans and the bands. 7

Havin thus described the invention, it will be apparent to those skilledin this art, that changes may be made in the specific constructionsillustrated without departing from the spirit or the scope oftheinvention. Therefore, what we claim as new and desire tosecure byLetters Patent is: l. In a b-akers banded pan-set comprising a pluralityof bake pans disposed in side by side relationship, the ends of each panhaving a pair of inverted substantially triangular. flaps, the bases ofwhich are parallel to and spaced from the tops of said pans, a band ateach end of the pans,is'aid bands extending across the ends' of all pansin'the s'et andaround the outercornersof thefoutermost pans in said setand having" downwardly projecting vertical clinch lugs offset inwardlyof the bands, said lugs being disposed between said flaps and the endwalls of said'pans, and straps disposed along theouter sides of theoutermost pans .and. connected to the ends of the said bands disposed atthe opposite ends of said pans, the foregoing pan-set beingcharacterized bythe fact that each pan has a wire-reinforced rolled edgeat the periphery of the top thereof, that the end bands are provided attheir upper edges with a groove adapted to receive-the wirere nf orcededges of the panends, that t he triangular end flaps are provided withnotches ad jacent the under sidesbf said reinforced pan edges, and thatsaid vertioal'clincnlugs extend between said flaps and pan end walls andabut 2. A pan-set according to claim 1 characterized by the fact thatthe free corners of each triangular flap at each pan end. are notched,and that the end bands are provided with two inwardly and downwardlyprojecting vertical clinch lugs for each pan end, and that the lugs arespaced to interlock with said notches in the free corners of said flaps,the said flap corners and lugs being squeezed together to form a rigidvertical clinch.

3. A pan-set according to claim 1 characterized by the fact that eachpan has a wire-reinforced rolled edge at the periphery of the topthereof, that the end bands are provided at their upper edges with agroove adapted to receive the wirereinforced edges of the pan ends, thatthe free corners of each triangular flap at each pan end are notched,and that the end bands are provided with two inwardly and downwardlyprojecting vertical clinch lugs for each pan end, and that the lugs arespaced to interlock with said notches in the free corners of said flaps,the said flap corners and lugs being squeezed together to form V a rigidvertical clinch.

4. A pan-set according to claim 1 characterized by the fact that the endbands are provided with stiffening grooves along their longitudinaledges, that the upper edges of said bands abut the under side of therolled edge at the top of the pan ends, that the triangular end flapsare provided with notches adjacent the under sides of said reinforcedpan edges, and that said vertical clinch lugs extend between said flapsand pan end walls and abut the shoulders of said notches whereby thepans are secured to said bands and locked against movement lengthwise ofsaid bands.

5. A pan-set according to claim 1 characterized by the fact that the endbands are provided with stiffening grooves along their longitudinaledges, that the upper edges of said bands abut the under side of therolled edge at the top of the pan ends, that the free corners of eachtriangular flap at each pan end are notched, and that the end bands areprovided with two inwardly and downwardly projecting vertical clinchlugs for each pan end, and that the lugs are spaced to interlock withsaid notches in the free corners of said flaps, the said flap cornersand lugs being squeezed together to form a rigid vertical clinch.

6. A pan-set according to claim 1 characterized by the fact that the endbands are provided with stifiening grooves along their longitudinaledges, that the upper edges of said bands abut the under side of therolled edge at the top of the pan ends, that the bands extend across theends of all the pans in the unit and around the outer corners of theoutermost pans of the set, that the free corners of each triangular flapat each pan end are notched, and that the end bands are provided withtwo inwardly and downwardly projecting vertical clinch lugs for each panend, and that the lugs are spaced to interlock with said notches in thefree corners of said flaps, the said flap corners and lugs beingsqueezed together to form a rigid vertical clinch.

'7. In a bakers banded pan-set comprising a plurality of bake pansdisposed in side by side relationship, the ends of each pan having apair of inverted substantially triangular flaps, the bases of which areparallel to and spaced from the tops of said pans, a band embracing thepan set and engaging the upper portions of the opposite end walls of theindividual pans in the set and the upper portions of the outer walls inthe outermost pans of said set, the portions of the bands engaging theend walls of said pans being provided with spaced downwardly projectingclinch lugs offset inwardly of the said band sections, there being a lugbetween each of said flaps and each end wall of a pan, and shoulders onsaid flaps engaging the outermost sides of said lu s to prevent movementof said pans length- A wise of said band sections.

JESSE L. DARNELL.

ELBERT M. CORMACK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,206,872 Lockwood et al Dec. 5,1916 2,078,716 Macdonald Apr. 27, 1937 2,143,728 Chandom'a Jan. 10, 19392,357,048 Jackson Aug. 29, 1944

